"Where does the danger you spoke of come in?" I asked with a pretence of interest. Candidly, I did not believe a single word that Brande had said.
"If you will consult a common text-book on the physics of the ether," he replied, "you will find that one grain of matter contains sufficient energy, if etherised, to raise a hundred thousand tons nearly two miles. In face of such potentiality it is not wise to wreck incautiously even the atoms of a molecule."
"And the limits to this description of scientific experiment? Where are they?"
"There are no limits," Brande said decisively. "No man can say to science 'thus far and no farther.' No man ever has been able to do so. No man ever shall!"
CHAPTER III
"IT IS GOOD TO BE ALIVE"
Amongst the letters lying on my breakfast-table a few days after the meeting was one addressed in an unfamiliar hand. The writing was bold, and formed like a man's. There was a faint trace of a perfume about the envelope which I remembered. I opened it first.
It was, as I expected, from Miss Brande. Her brother had gone to their country place on the southern coast. She and her friend, Edith Metford, were going that day. Their luggage was already at the station. Would I send on what I required for a short visit, and meet them at eleven o'clock on the bridge over the Serpentine? It was enough for me. I packed a large portmanteau hastily, sent it to Charing Cross, and spent the time at my disposal in the park, which was close to my hotel.
Although the invitation I had received gave me pleasure, I could not altogether remove from my mind a vague sense of disquietude concerning Herbert Brande and his Society. The advanced opinions I had heard, if extreme, were not altogether alarming. But the mysterious way in which Brande himself had spoken about the Society, and the still more mysterious air which some of the members assumed when directly questioned as to its object, suggested much. Might it not be a revolutionary party engaged in a grave intrigue — a branch of some foreign body whose purpose was so dangerous that ordinary disguises were not considered sufficiently secure? Might they not have adopted the jargon and pretended to the opinions of scientific faddists as a cloak for designs more sinister and sincere? The experiment I witnessed might be almost a miracle or merely a trick. Thinking it over thus, I could come to no final opinion, and when I asked myself aloud, "What are you afraid of?" I could not answer my own question. But I thought I would defer joining the Society pending further information.
A few minutes before eleven, I walked towards the bridge over the Serpentine. No ladies appeared to be on it. There were only a couple of smartly dressed youths there, one smoking a cigarette. I sauntered about until one of the lads, the one who was not smoking, looked up and beckoned to me. I approached leisurely, for it struck me that the boy would have shown better breeding if he had come toward me, considering my seniority.
"I am sorry I did not notice you sooner. Why did you not come on when you saw us?" the smallest and slimmest youth called to me.
"In the name of — Miss — Miss — " I stammered.
"Brande; you haven't forgotten my name, I hope," Natalie Brande said coolly. "This is my friend, Edith Metford. Metford, this is Arthur Marcel."
"How do you do, Marcel? I am glad to meet you; I have heard 'favourable mention' of you from the Brandes," the second figure in knickerbockers said pleasantly.
"How do you do, sir — madam — I mean — Miss — " I blundered, and then in despair I asked Miss Brande, "Is this a tableau vivant? What is the meaning of these disguises?" My embarrassment was so great that my discourteous question may be pardoned.
"Our dress! Surely you have seen women rationally dressed before!" Miss Brande answered complacently, while the other girl watched my astonishment with evident amusement.
This second girl, Edith Metford, was a frank, handsome young woman, but unlike the spirituelle beauty of Natalie Brande. She was perceptibly taller than her friend, and of fuller figure. In consequence, she looked, in my opinion, to even less advantage in her eccentric costume, or rational dress, than did Miss Brande.
"Rationally dressed! Oh, yes. I know the divided skirt, but — "
Miss Metford interrupted me. "Do you call the divided skirt atrocity rational dress?" she asked pointedly.
"Upon my honour I do not," I answered.
These girls were too advanced in their ideas of dress for me. Nor did I feel at all at my ease during this conversation, which did not, however, appear to embarrass them. I proposed hastily to get a cab, but they demurred. It was such a lovely day, they preferred to walk, part of the way at least. I pointed out that there might be drawbacks to this amendment of my proposal.
"What drawbacks?" Miss Metford asked.
"For instance, isn't it probable we shall all be arrested by the police?" I replied.
"Rubbish! We are not in Russia," both exclaimed.
"Which is lucky for you," I reflected, as we commenced what was to me a most disagreeable walk. I got them into a cab sooner than they wished. At the railway station I did not offer to procure their tickets. To do so, I felt, would only give offence. Critical glances followed us as we went to our carriage. Londoners are becoming accustomed to varieties, if not vagaries, in ladies' costumes, but the dress of my friends was evidently a little out of the common even for them. Miss Metford was just turning the handle of a carriage door, when I interposed, saying, "This is a smoking compartment."
"So I see. I am going to smoke — if you don't object?"
"I don't suppose it would make any difference if I did," I said, with unconscious asperity, for indeed this excess of free manners was jarring upon me. The line dividing it from vulgarity was becoming so thin I was losing sight of the divisor. Yet no one, even the most fastidious, could associate vulgarity with Natalie Brande. There remained an air of unassumed sincerity about herself and all her actions, including even her dress, which absolutely excluded her from hostile criticism. I could not, however, extend that lenient judgment to Miss Metford. The girls spoke and acted — as they had dressed themselves — very much alike. Only, what seemed to me in the one a natural eccentricity, seemed in the other an unnatural affectation.
I saw the guard passing, and, calling him over, gave him half-a-crown to have the compartment labelled, "Engaged."
Miss Brande, who had been looking out of the window, absently asked my reason for this precaution. I replied that I wanted the compartment reserved for ourselves. I certainly did not want any staring and otherwise offensive fellow-passengers.
"We don't want all the seats," she persisted.
"No," I admitted. "We don't want the extra seats. But I thought you might like the privacy."
"The desire for privacy is an archaic emotion," Miss Metford remarked sententiously, as she struck a match.
"Besides, it is so selfish. We may be crowding others," Miss Brande said quietly.
I was glad she did not smoke.
"I don't want that now," I said to a porter who was hurrying up with a label. To the girls I remarked a little snappishly, "Of course you are quite right. You must excuse my ignorance."
"No, it is not ignorance," Miss Brande demurred. "You have been away